Halfway through 2026, the IRS raised the optional standard mileage rate for business driving from 72.5 cents to 76 cents per mile, effective July 1, 2026. The change arrived in Announcement 2026-11, published in Internal Revenue Bulletin 2026-29 on July 13, 2026, and the IRS attributed the mid-year move to rising fuel prices. The medical and moving rate rose to 23.5 cents, while the charitable rate stays fixed by statute at 14 cents under 26 U.S.C. § 170(i).
For New Mexico employers, this is more than a bookkeeping update. Distances here are long: a home-health aide covering Albuquerque’s West Side, a title runner working between Santa Fe and Española, a pest-control tech running US 550 out of Rio Rancho, or an oilfield services coordinator shuttling between Hobbs and Carlsbad can each put hundreds of business miles a month on a personal vehicle. When employees drive that much, a stale reimbursement policy quietly becomes a tax problem, and for lower-wage workers, a wage-and-hour problem.
What Does the IRS Rate Actually Do, and What Does It Not Do?
The standard mileage rate is optional. No federal statute requires any employer to reimburse mileage at all, let alone at 76 cents. What the rate does is provide a substantiation safe harbor: reimbursements at or below the standard rate for substantiated business miles are deemed to satisfy the expense-substantiation rules, so they can be paid free of income and payroll taxes under an accountable plan. The framework comes from 26 U.S.C. § 62(a)(2)(A) and (c) and the regulations at Treas. Reg. § 1.62-2: the expense must have a business connection, the employee must substantiate miles, dates, and business purpose within a reasonable period, and any excess advance must be returned. Pay more than the standard rate without proof of higher actual costs, and the excess is wages. Skip the substantiation, and the entire payment is wages.
Can Paying Less Than 76 Cents Violate Wage Law?
Here is the trap employers miss. The Fair Labor Standards Act never mentions mileage, but its regulations require that minimum wages be paid free and clear. Under the kickback rule of 29 C.F.R. § 531.35, when an employee bears a cost that is primarily for the employer’s benefit, such as gas, tires, and depreciation on a car the job requires, the unreimbursed cost is treated as if it were kicked back to the employer. If that deemed kickback cuts a nonexempt employee’s effective hourly rate below the applicable minimum wage in any workweek, the employer has a violation even though the paychecks looked lawful on their face.
New Mexico adds its own floor. The Minimum Wage Act, NMSA 1978, § 50-4-22, sets the state minimum at $12.00 per hour, well above the federal $7.25, and Santa Fe, Las Cruces, and Albuquerque have local ordinances that can push the floor higher still. Because the relevant minimum here is $12.00 or more rather than $7.25, New Mexico employers have far less cushion before under-reimbursed driving drags a paycheck below the line than the federal rule alone would suggest.
What Did the Sixth Circuit’s Pizza-Delivery Cases Decide?
In March 2024, the Sixth Circuit decided Parker v. Battle Creek Pizza, Inc., No. 22-2119 (6th Cir. Mar. 12, 2024), consolidated with Bradford v. Team Pizza, Inc., No. 22-3561, a pair of cases about how to value delivery drivers’ vehicle costs for minimum-wage purposes. The drivers wanted courts to presume costs equal the IRS standard rate; the employers wanted a lenient “reasonable approximation” standard borrowed from the overtime regulation at 29 C.F.R. § 778.217. The court rejected both. The IRS rate is a nationwide average that can overpay or underpay any particular driver, and a mere approximation cannot prove that minimum wages were actually paid free and clear. The court also declined to defer to the Department of Labor’s Field Operations Handbook, which had blessed the IRS-rate shortcut.
New Mexico sits in the Tenth Circuit, which has not resolved the question, so neither the drivers’ shortcut nor the employers’ shortcut is settled law here. That cuts both ways: an employer reimbursing at the full IRS rate has a strong practical defense, but no court in this circuit has held that anything less, or anything approximated, is automatically safe. The prudent reading of Parker for a New Mexico employer is that documentation of actual costs, not proxies, wins these disputes.
How Does the Math Play Out for an Albuquerque Home-Health Aide?
Run the numbers on a realistic case. An Albuquerque agency pays a nonexempt home-health aide $13.00 per hour for 160 hours a month, or $2,080, and the aide drives 800 business miles a month between client homes in her own car. Suppose her true all-in vehicle cost is 55 cents per mile, or $440 a month. If the agency reimburses 25 cents per mile, it pays $200 and leaves $240 unreimbursed. Her free-and-clear pay is $2,080 minus $240, or $1,840, which works out to $11.50 per hour, below New Mexico’s $12.00 minimum even though it comfortably clears the federal floor. The agency has a state wage violation hiding inside a policy that looked generous on paper. Notice how thin the cushion is: at $13.00 per hour, this aide can absorb only $160 of unreimbursed monthly expense, one dollar per hour, before the paycheck goes under. Employers of drivers earning near the minimum should treat every reimbursement rate cut as a wage-and-hour decision, not just a budget decision.
Is an Accountable Plan Cheaper Than Just Raising Pay?
Some employers respond by grossing up wages instead of running a mileage program. The tax math punishes that choice. Reimbursing that same aide’s 800 miles at the new 76-cent rate under an accountable plan costs the agency $608 a month, deductible and free of employment tax. Paying an extra $608 in wages instead triggers the employer’s 7.65 percent FICA share, about $46.51 a month or $558 a year per employee, plus unemployment tax and workers’ compensation premium effects, while the aide loses her own income and payroll tax on the money, so less of it actually covers her car. And the employee has no self-help remedy at tax time: unreimbursed employee business expenses are nondeductible miscellaneous itemized deductions under 26 U.S.C. § 67(g), a Tax Cuts and Jobs Act suspension that 2025 legislation made permanent. The accountable plan is the only structure that delivers a full dollar of car cost for a dollar of employer spend.
The mid-year change adds one wrinkle worth building into payroll now: 2026 is a two-rate year. Miles driven through June 30 substantiate at 72.5 cents; miles on or after July 1 substantiate at 76 cents. Expense systems must apply the rate based on the date the miles were driven, not the date the report was filed, and year-end totals for self-employed taxpayers using the standard mileage method must be split the same way. Sloppy date-handling turns safe-harbor reimbursements into partially taxable wages, and mileage logs are exactly the kind of contemporaneous documentation that decides examinations, a lesson the firm makes at length in its New Mexico gross receipts tax audit guide.
What Should a New Mexico Employer’s Policy Tune-Up Cover?
A defensible 2026 policy does a handful of things in plain language. It states the reimbursement rate and ties it to a rationale, whether the IRS safe harbor or a documented cost study for the vehicles and territory your employees actually drive; New Mexico’s long rural stretches and washboard county roads are not the national average the IRS rate reflects. It requires mileage logs with dates, distances, and business purpose submitted on a set cycle, and it recovers excess advances. It flags low-wage drivers for a workweek-level check so that reimbursement shortfalls never push effective pay below $12.00, or the higher Santa Fe-area floors. And it revisits the rate whenever the IRS moves mid-year, as it just did. None of that is burdensome compared to defending a collective action or a payroll tax exam after the fact.
| Approach | Federal tax treatment | Wage-and-hour risk in New Mexico |
|---|---|---|
| Accountable plan at the 76-cent IRS rate | Tax-free to employee; deductible; no FICA | Low; strong practical defense, though the Tenth Circuit has not blessed the rate as conclusive |
| Accountable plan below the IRS rate | Tax-free if substantiated | Depends on actual costs; requires workweek minimum-wage testing for low-wage drivers |
| Flat car allowance, no substantiation | Fully taxable wages; FICA on every dollar | Allowance counts toward wages, but unproven costs can still create kickback exposure |
| No reimbursement | No employer cost; employee gets no deduction under § 67(g) | Highest; kickback rule plus the $12.00 state floor leaves little cushion |
Frequently Asked Questions
Does New Mexico law require employers to reimburse mileage?
No statute mandates mileage reimbursement in New Mexico, unlike California or Illinois. The exposure comes indirectly: unreimbursed vehicle costs can drive a nonexempt employee’s effective pay below the $12.00 state minimum under the free-and-clear principle, creating liability under the Minimum Wage Act and the FLSA.
Is paying the IRS rate a legal safe harbor against wage claims?
It is a tax substantiation safe harbor, not a wage-and-hour one. The Sixth Circuit in Parker rejected the IRS rate as a legal measure of drivers’ costs, and the Tenth Circuit, which covers New Mexico, has not ruled. Practically, reimbursing at the full rate makes a minimum-wage claim hard to build, but it is not an automatic defense.
Can we reimburse more than 76 cents per mile?
Yes, but amounts above the standard rate are taxable wages unless the employee substantiates actual expenses exceeding the rate. Employers with heavy-duty use cases sometimes run a fixed-and-variable-rate (FAVR) program instead, which the IRS also recognizes.
What records should employees submit?
Date, miles, origin and destination, and business purpose for each trip, submitted within a reasonable period, with any excess advances returned. Under an accountable plan, that substantiation is what keeps the reimbursement out of wages entirely.
How does the mid-year increase affect self-employed New Mexicans?
A Schedule C driver using the standard mileage method must split 2026 miles at July 1: the first half deducts at 72.5 cents and the second at 76 cents. A contemporaneous log that dates each trip makes the split trivial; a reconstructed log makes it an audit issue.
Do higher local minimum wages change the analysis?
Yes. The kickback test runs against the highest applicable minimum wage, so employers with drivers based in Santa Fe or Las Cruces must test reimbursement adequacy against those local floors, not just the $12.00 state rate.
How North Star Law Firm Can Help
North Star Law Firm brings an attorney-CPA’s perspective to problems that sit exactly where this one does, at the seam between payroll tax and employment exposure. The firm can review reimbursement policies against the accountable plan rules, model the FICA and minimum-wage math for a specific workforce, structure mileage programs that survive both an IRS exam and a wage claim, and defend employers when the government comes asking, through its tax law and IRS audit defense practices. New Mexico employers who want their mileage policy stress-tested before the two-rate 2026 year closes can contact the firm for a free consultation by phone or video.